The difference between PP non-woven fabric and SMS non-woven fabric
Non-woven fabrics are a general term, because PET can also be used as non-woven fabrics, but PP non-woven fabrics limit the types of plastics. In principle, there is no difference between them,
SMS is added on the basis of two spunbond production lines, a meltblown M production line. PP non-woven fabric is spunbond non-woven fabric, PP refers to the production raw material of non-woven fabric, polypropylene, the product name in China is polypropylene, so sometimes you see polypropylene non-woven fabrics, but they are actually the same. The spunbond non-woven fabric is the non-woven fabric produced by S or SS. The process of spunbond production is different from the production process of meltblown M, and the molding is also different. S is spinning and meltblown is injection molding. The materials used are also different, and the process temperature is different. It is not difficult to see the difference between SMS and PP.
PP non-woven and SMMS non-woven materials:
SMS non-woven fabric (English: Spunbond + Meltblown + Spunbond Nonwovens) is a composite non-woven fabric, which is a composite product of spunbond and meltblown. It has the advantages of high strength, good filtration performance, no adhesive, and non-toxicity. At present, it is mainly used for medical and health labor protection products such as surgical gowns, surgical caps, protective clothing, hand washing clothes, handbags, etc. The material component is fiber.
The full name of pp is polypropylene, and the Chinese name is polypropylene. Nw is the abbreviation of nonwoven, which is non-woven or non-woven. It is a non-woven fabric formed by forming fibers through air flow or machinery, and then spunlacing, needle punching, or hot-rolling reinforcement and finally finishing. Ppnw means non-woven fabrics made of pp fibers. Due to the nature of pp itself, the final performance of the cloth is high strength, but poor hydrophilic performance. Usually the process flow of ppnw is spinning into a web and hot rolling reinforcement. Generally, ppnw has a wide range of uses, such as packaging bags, surgical protective clothing, industrial cloth, etc.